Look at the construction on a balancer sometime. The pulley is riveted to the inner section that press-fits over the crank snout, and the damper ring is a separate, rubber-mounted piece. Bolting another pulley sheave to the front of the hub has no effect at all on the dampening action of the balancer ring.
Leon, the computer at work blocks out pictures, so I'll have to take a look later in the day, from home.
Jerry
